I am getting this error message as well:
Versions:
WordPress: 4.9.5
WordPress MS: No
PHP: 7.0.29
WP Mail SMTP: 1.2.5
Params:
Mailer: mail
Constants: No
Server:
PHP.mail(): Yes
I turned off the snow effect as described above “Customize > Theme Options > Theme General Options > “Snow effect on/off”, however today noticed the snow is back, and the option is no longer showing in the Theme General Options.
Can someone please advise how else I can get rid of it? Is there a code I can add to the CSS?